Item - Check Valves: Check Valve; Flow Design: Single; Mechanism and Body Design: Inline Swing; Body Material - Valves: Bronze; Pipe or Tube Size - Check Valves: 1 1/2 in; Connection Type - Check Valves: Sweat x Sweat; Cracking Pressure - Check Valves: 0.75 to 1 psi; Mounting Orientation - Check Valves: Horizontal, Vertical; Seal Material - Check Valves: PTFE; Max. Temp. - Valves: 406 Degrees F; Min. Temp. - Valves: -20 Degrees F; Max. Water Pressure - Valves: 300 psi @ 150 Degrees F; Max. Steam Pressure - Valves: 150 psi WSP; Seat Material - Check Valves: Bronze; Flow - Valves: 76 gpm; Full Flow - Valves: Yes; Application - Valves: General Purpose; Length: 4 15/16 in; Cap to Inlet Center: 2 13/32 in; Standards: MSS SP-80